Question 1

List two ways in which humans likely caused climate changes before the time of the industrial revolution.

Accepted Answer

Overgrazin...

Question 2

Volcanic eruptions can act as agents for climate change since they:

Accepted Answer

A)   reduce the solar energy at Earth's surface.
B)   increase the numbers of cyclones.
C)   increase the amount of evaporation.
D)   release large amounts of heat.
E)   cause small changes in the earth's tilt.

Question 3

Describe two examples of how the warmer temperatures due to increased CO2 in the atmosphere may lead to positive feedback effects.

Accepted Answer

1. Warmer temperatures will result in mo...

Question 4

One possible result of the addition of carbon dioxide to the atmosphere is an increase in cloud cover which, in turn, could partly offset a global temperature increase.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is NOT associated with the Milankovitch astronomical theory of climate change?

Accepted Answer

A)   precession
B)   lunar phases
C)   obliquity
D)   eccentricity

Question 6

Scientists expect climate change to:

Accepted Answer

A)   cause every place on the planet to warm evenly and consistently.
B)   cause each year to be consecutively warmer than the one before.
C)   cause some areas on the planet to cool dramatically.
D)   cause each decade to be warmer than the previous one.

Question 7

In comparison to the global average, warming in the polar regions could be:

Accepted Answer

A)   about the same.
B)   two to three times greater.
C)   ten times greater.
D)   about 50% lower.

Question 8

Oxygen- isotope analysis:

Accepted Answer

A)   is very simple.
B)   relies on the fact that 16O evaporates from the ocean more readily than 18O.
C)   has been shown to be of little or no use in the study of past climatic changes.
D)   cannot be carried out on ice cores or sea floor sediments, but works well for tree ring analysis.

Question 9

Oxygen isotope analysis measures the:

Accepted Answer

A)   rate of oxygen depletion.
B)   amount of radioactivity due to oxygen.
C)   total oxygen present.
D)   oxygen content of sediment.
E)   proportions of 2 different types of oxygen atoms.

Question 10

Which of the following gases may be contributing to a greenhouse warming?

Accepted Answer

A)   hydrogen
B)   oxygen
C)   nitrogen
D)   methane
E)   carbon monoxide

Question 11

Proxy data:

Accepted Answer

A)   come quality- controlled instrument records.
B)   can only extend the temperature record back an additional 500 years.
C)   provide climate data representing times when instruments were not available to measure them.
D)   are difficult to find because they occur only in very limited areas.

Question 12

The combined influence of CFCs, methane and nitrous oxide as greenhouse gases is insignificant.

Accepted Answer

A) True 
 B)False

Question 13

What is the current axial tilt of the earth?

Accepted Answer

A)   45 degrees
B)   21.5 degrees
C)   23.5 degrees
D)   24 degrees

Question 14

The climate system consists of the:

Accepted Answer

A)   hydrosphere.
B)   atmosphere.
C)   cryosphere.
D)   just the cryosphere and atmosphere.
E)   the cryosphere, atmosphere, hydrosphere, biosphere, and solid Earth.

Question 15

Past climate data measured with instruments extends back about:

Accepted Answer

A)   200 yrs.
B)   500 yrs.
C)   100 yrs.
D)   30 yrs.

Question 16

Recent studies indicate that the impact on climate of a great explosive volcanic eruption can last for decades.

Accepted Answer

A) True 
 B)False

Question 17

There are insufficient data to determine with a strong degree of certainty that solar variability affects climate.

Accepted Answer

A) True 
 B)False

Question 18

Who is credited with developing the modern theory that variations in the earth's orbit influence climate change?

Accepted Answer

Milutin Mi...

Question 19

The smallest temperature increases due to global warming are expected in the middle latitudes.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is NOT a part of the climate system?

Accepted Answer

A)   hydrosphere
B)   climosphere
C)   biosphere
D)   lithosphere
E)   atmosphere

Exam 14: The Changing Climate

One possible result of the addition of carbon dioxide to the atmosphere is an increase in cloud cover which, in turn, could partly offset a global temperature increase.

Correct AnswerverifiedShow Answer

The combined influence of CFCs, methane and nitrous oxide as greenhouse gases is insignificant.

Correct AnswerverifiedShow Answer

Recent studies indicate that the impact on climate of a great explosive volcanic eruption can last for decades.

Correct AnswerverifiedShow Answer

Proxy data:

Correct AnswerverifiedShow Answer

What is the current axial tilt of the earth?

Correct AnswerverifiedShow Answer

Oxygen- isotope analysis:

Correct AnswerverifiedShow Answer

Scientists expect climate change to:

Correct AnswerverifiedShow Answer

In comparison to the global average, warming in the polar regions could be:

Correct AnswerverifiedShow Answer

Volcanic eruptions can act as agents for climate change since they:

Correct AnswerverifiedShow Answer

Which of the following gases may be contributing to a greenhouse warming?

Correct AnswerverifiedShow Answer

Describe two examples of how the warmer temperatures due to increased CO2 in the atmosphere may lead to positive feedback effects.

Correct Answerverified1. Warmer temperatures will result in mo...View AnswerShow Answer

List two ways in which humans likely caused climate changes before the time of the industrial revolution.

Correct AnswerverifiedOvergrazin...View AnswerShow Answer

Oxygen isotope analysis measures the:

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There are insufficient data to determine with a strong degree of certainty that solar variability affects climate.

Correct AnswerverifiedShow Answer

Which of the following is NOT a part of the climate system?

Correct AnswerverifiedShow Answer

The climate system consists of the:

Correct AnswerverifiedShow Answer

Which of the following is NOT associated with the Milankovitch astronomical theory of climate change?

Correct AnswerverifiedShow Answer

Past climate data measured with instruments extends back about:

Correct AnswerverifiedShow Answer

The smallest temperature increases due to global warming are expected in the middle latitudes.

Correct AnswerverifiedShow Answer

Who is credited with developing the modern theory that variations in the earth's orbit influence climate change?

Correct AnswerverifiedMilutin Mi...View AnswerShow Answer

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Describe two examples of how the warmer temperatures due to increased CO₂in the atmosphere may lead to positive feedback effects.

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1. Warmer temperatures will result in mo...
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Overgrazin...
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Milutin Mi...
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